Malware Analysis Report

2024-10-19 13:24

Sample ID 240825-sxf1fsshnp
Target 79e890898d8d3228e96f2cc3ae01f1e0N.exe
SHA256 e74a80a23247f4c8e5a0e26ad538de6c87c30b90f800de23799ea71fd5c53084
Tags
tinba banker discovery persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e74a80a23247f4c8e5a0e26ad538de6c87c30b90f800de23799ea71fd5c53084

Threat Level: Known bad

The file 79e890898d8d3228e96f2cc3ae01f1e0N.exe was found to be: Known bad.

Malicious Activity Summary

tinba banker discovery persistence trojan

Tinba / TinyBanker

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 15:30

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 15:30

Reported

2024-08-25 15:32

Platform

win7-20240704-en

Max time kernel

118s

Max time network

118s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\3244AF96 = "C:\\Users\\Admin\\AppData\\Roaming\\3244AF96\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe

"C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 216.218.185.162:80 spaines.pw tcp

Files

memory/2620-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1236-3-0x0000000003030000-0x0000000003036000-memory.dmp

memory/1236-2-0x0000000003030000-0x0000000003036000-memory.dmp

memory/1236-1-0x0000000003030000-0x0000000003036000-memory.dmp

memory/2620-4-0x0000000001D50000-0x0000000002750000-memory.dmp

memory/2692-10-0x0000000076EA0000-0x0000000077049000-memory.dmp

memory/1236-9-0x0000000076EF1000-0x0000000076EF2000-memory.dmp

memory/2692-8-0x000000007709F000-0x00000000770A1000-memory.dmp

memory/2692-7-0x000000007709F000-0x00000000770A0000-memory.dmp

memory/2692-6-0x00000000770A0000-0x00000000770A1000-memory.dmp

memory/2692-5-0x00000000001F0000-0x00000000001F6000-memory.dmp

memory/2620-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2620-12-0x0000000001D50000-0x0000000002750000-memory.dmp

memory/1556-23-0x0000000001F00000-0x0000000001F06000-memory.dmp

memory/1556-29-0x0000000076EF1000-0x0000000076EF2000-memory.dmp

memory/1556-28-0x0000000001F00000-0x0000000001F06000-memory.dmp

memory/1236-27-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1164-26-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1108-25-0x0000000076EF1000-0x0000000076EF2000-memory.dmp

memory/1108-24-0x0000000000160000-0x0000000000166000-memory.dmp

memory/1236-21-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1164-19-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/2692-30-0x00000000001F0000-0x00000000001F6000-memory.dmp

memory/1556-31-0x0000000076EF1000-0x0000000076EF2000-memory.dmp

memory/1556-32-0x0000000076EF1000-0x0000000076EF2000-memory.dmp

memory/1556-36-0x0000000001F00000-0x0000000001F06000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 15:30

Reported

2024-08-25 15:32

Platform

win10v2004-20240802-en

Max time kernel

118s

Max time network

97s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3ECF4927 = "C:\\Users\\Admin\\AppData\\Roaming\\3ECF4927\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\winver.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe

"C:\Users\Admin\AppData\Local\Temp\79e890898d8d3228e96f2cc3ae01f1e0N.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2184 -ip 2184

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/4824-0-0x0000000000670000-0x0000000000671000-memory.dmp

memory/3388-1-0x0000000000B50000-0x0000000000B56000-memory.dmp

memory/3388-2-0x0000000000B50000-0x0000000000B56000-memory.dmp

memory/3388-6-0x00007FFDA3D4D000-0x00007FFDA3D4E000-memory.dmp

memory/2184-5-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

memory/2184-4-0x00000000013B0000-0x00000000013B6000-memory.dmp

memory/4824-3-0x00000000021B0000-0x0000000002BB0000-memory.dmp

memory/2184-7-0x00007FFDA3CB0000-0x00007FFDA3EA5000-memory.dmp

memory/3388-8-0x00007FFDA3EE0000-0x00007FFDA3EE1000-memory.dmp

memory/4824-9-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4824-10-0x00000000021B0000-0x0000000002BB0000-memory.dmp

memory/2620-14-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2184-15-0x00000000013B0000-0x00000000013B6000-memory.dmp

memory/2620-17-0x00007FFDA3ED0000-0x00007FFDA3ED1000-memory.dmp